APPLICATION OF KINETIC MODELS IN DESCRIBING NON-EXCHANGEABLE POTASSIUM RELEASE IN SOME SOILS OF HAMADAN

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HOSSEINPOUR A.R.

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Journal: Journal of Water and Soil Science Year:2004 | Volume:8 | Issue:3 Page(s): 85-94

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Title

APPLICATION OF KINETIC MODELS IN DESCRIBING NON-EXCHANGEABLE POTASSIUM RELEASE IN SOME SOILS OF HAMADAN

Author(s)

HOSSEINPOUR A.R. | Issue Writer Certificate

Keywords

NONEXCHANGEABLE KQ3

RELEASEQ4

CITRIC ACIDQ3

CORRELATIONQ4

Abstract

Information about nonexchangeable potassium (NEK) RELEASE rate in Hamadan soils is limited. The objective of this study included an investigation of the dynamics of NEK in some soils from Hamadan Province by successive extraction with dilute CITRIC ACID over a period of 2500 h and determination of the CORRELATION between the rate constants in this kinetic equation with soil properties.The results of this experiment showed that the initial NEK RELEASE rate was rapid which slowed down later on. The amount of NEK RELEASEd after 2500 h ranged from 0.87 to 2.89 cmol kg-1. The amount of NEK RELEASEd after 2500 h was significantly correlated with CEC, NEK, and soil separates. First order, parabolic diffusion law and power function equations described well the NEK RELEASE kinetics based on their highest determination coefficient and their lowest value of the standard error of the estimate. RELEASE rate constant in the first order, parabolic diffusion law and power function equations ranged from 1.0×10-4 to 3.0×10-4, 1.7×10-4 to 10.6×10-4 and 2.75×10-1 to 4.6×10-1, respectively. In the CORRELATION study the rate constants in the kinetic equations were correlated with some chemical properties and particle size distribution. The results of this experiment also showed that dilute CITRIC ACID can be used in the study of NEK RELEASE.

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References

KINETICS OF NON-EXCHANGEABLE POTASSIUM RELEASE FROM SOIL AND SOIL FRACTIONS IN SELECTED SOILS OF GILAN PROVINCE

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APA: Copy

HOSSEINPOUR, A.R.. (2004). APPLICATION OF KINETIC MODELS IN DESCRIBING NON-EXCHANGEABLE POTASSIUM RELEASE IN SOME SOILS OF HAMADAN. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 8(3), 85-94. SID. https://sid.ir/paper/15002/en

Vancouver: Copy

HOSSEINPOUR A.R.. APPLICATION OF KINETIC MODELS IN DESCRIBING NON-EXCHANGEABLE POTASSIUM RELEASE IN SOME SOILS OF HAMADAN. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2004;8(3):85-94. Available from: https://sid.ir/paper/15002/en

IEEE: Copy

A.R. HOSSEINPOUR, “APPLICATION OF KINETIC MODELS IN DESCRIBING NON-EXCHANGEABLE POTASSIUM RELEASE IN SOME SOILS OF HAMADAN,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 8, no. 3, pp. 85–94, 2004, [Online]. Available: https://sid.ir/paper/15002/en

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